From 254329b95bb4e6b49f503c99c88d37160b61a19c Mon Sep 17 00:00:00 2001
From: Nick Mills-Barrett <nick@beeper.com>
Date: Fri, 19 Dec 2025 12:25:05 +0000
Subject: [PATCH] federation/client: set content type when reqJSON provided

---
 federation/client.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/federation/client.go b/federation/client.go
index 183fb5d16..e754535e8 100644
--- a/federation/client.go
+++ b/federation/client.go
@@ -550,6 +550,9 @@ func (c *Client) compileRequest(ctx context.Context, params RequestParams) (*htt
 			WrappedError: err,
 		}
 	}
+	if reqJSON != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
 	req.Header.Set("User-Agent", c.UserAgent)
 	if params.Authenticate {
 		if c.ServerName == "" || c.Key == nil {